Segment Information (Tables)

12 Months Ended

Mar. 31, 2025

Segment Reporting [Abstract]

Segment Revenues, Expenses and Operating Profits (Losses)

Segment revenues, expenses and operating profits (losses) for the fiscal years ended March 31, 2025, 2024 and 2023 were as follows:

	Fiscal Years Ended
	March 31, 2025			March 31, 2024			March 31, 2023
	(In thousands)
Revenues:
Communication services
Aviation services	$	1,048,225		$	864,834		$	346,950
Government satcom services		754,552			596,826			165,897
Maritime services		477,968			430,090			3,362
Fixed services and other services		741,601			906,762			919,440
Total services		3,022,346			2,798,512			1,435,649
Total products		276,139			343,028			269,126
Total communication services revenues		3,298,485			3,141,540			1,704,775
Defense and advanced technologies
Total services		203,430			206,082			166,383
Information security and cyber defense products		325,439			302,056			181,591
Space and mission systems products		304,870			309,253			259,286
Tactical networking products		319,577			202,094			179,099
Advanced technologies and other products		67,770			122,733			65,024
Total products		1,017,656			936,136			685,000
Total defense and advanced technologies revenues		1,221,086			1,142,218			851,383
Elimination of intersegment revenues		—			—			—
Total revenues	$	4,519,571		$	4,283,758		$	2,556,158
Expenses:
Communication services
Depreciation	$	988,447		$	825,788		$	350,954
Stock-based compensation expense		48,760			52,662			51,578
Other than acquired intangible assets amortization		41,373			50,718			49,058
Acquisition and transaction related expenses		50,807			114,113			53,285
Ground network (FY25), satellite (FY24) impairment    and related charges, net		169,400			905,496		—
Other segment items (2)		2,049,920			2,009,817			1,389,302
Total communication services expenses (1)		3,348,707			3,958,594			1,894,177
Defense and advanced technologies
Depreciation		48,020			41,853			52,701
Stock-based compensation expense		31,625			30,969			30,534
Other than acquired intangible assets amortization		19,034			12,000			11,047
Acquisition and transaction related expenses		13,660			43,466			33,011
Other segment items (2)		892,072			859,517			660,833
Total defense and advanced technologies expenses (1)		1,004,411			987,805			788,126
Total expenses	$	4,353,118		$	4,946,399		$	2,682,303
Operating profits (losses):
Communication services	$	(50,222	)	$	(817,054	)	$	(189,402	)
Defense and advanced technologies		216,675			154,413			63,257
Elimination of intersegment operating profits (losses)		—			—			—
Segment operating profit (loss) before corporate    and amortization of acquired intangible assets		166,453			(662,641	)		(126,145	)
Corporate:
Amortization of acquired intangible assets		(263,933	)		(227,165	)		(29,811	)
Interest income		83,920			96,258			19,512
Interest expense		(421,944	)		(400,398	)		(26,809	)
(Loss) gain on extinguishment of debt, net		(99,814	)	—			—
Other income (expense), net		(9,976	)		—			1,098
Income (loss) from continuing operations before income taxes	$	(545,294	)	$	(1,193,946	)	$	(162,155	)

(1)For fiscal years 2025, 2024, and 2023, IR&D expense and related activities, including allocable depreciation, stock-based compensation and other expenses were $83.4 million, $105.0 million and $99.5 million, respectively, for the communication services segment, and $59.0 million, $45.7 million and $29.4 million, respectively, for the defense and advanced technologies segment.

(2)Other segment items include operating expenses such as cost of service and product revenues, selling, general and administrative expenses, IR&D expenses and related activities excluding allocable portion of depreciation, other than acquired intangibles amortization, stock-based compensation, and certain significant items that are disclosed under each segment.

Revenues by Geographic Area

Revenues by geographic area for the fiscal years ended March 31, 2025, 2024 and 2023 were as follows:

	Fiscal Years Ended
	March 31,  2025		March 31,  2024		March 31,  2023
	(In thousands)
U.S. customers	$	3,117,233	$	3,029,303	$	2,147,651
Non U.S. customers (each country individually insignificant)		1,402,338		1,254,455		408,507
Total revenues	$	4,519,571	$	4,283,758	$	2,556,158